package com.gdut.gulimall.seckill.scheduled;

import com.gdut.gulimall.seckill.service.SeckillService;
import lombok.extern.slf4j.Slf4j;
import org.redisson.api.RLock;
import org.redisson.api.RedissonClient;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Service;

import java.util.concurrent.TimeUnit;

/**
 * @author Drifiter
 * @create 2021-11-03 15:36
 */
@Slf4j
@Service
public class SeckillSkuScheduled {

    @Autowired
    SeckillService seckillService;

    @Autowired
    RedissonClient redissonClient;

    private final String upload_lock = "seckill:upload:lock";
    

    //TODO 幂等性
    @Scheduled(cron = "*/3 * * * * ?")
    public void uploadSeckillSkuLatest3Day() {

        log.info("上架秒杀的商品信息");      
        // 分布式锁。锁的业务执行完成，状态已经更新完成。释放锁以后。其他人获取到就会拿到最新的状态。
        RLock lock = redissonClient.getLock(upload_lock);
        lock.lock(10, TimeUnit.SECONDS);
        try {
            seckillService.uploadSeckillSkuLatest3Day();
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            lock.unlock();
        }


    }

}
